Improvement in sewing-tviachsnes for boots and shoes



zshemnsheeu, F15. E. QSiNSKY.

SewngMachn% {m- Eoos and Shoes. NQ. M9059. Pa med'luy ,#1872, 7L

2 Sheets--Sheet 2.

N. M. RoslNsKY".

Sewing-Machine for Boots and Shoes. No.129,059 Pafented1u|y16,1a72.

Uivrrnn STATES PATENT @Errea NATHAN M. ROSIN SKY, OF NEW YORK, N. Y.

iidFROVEMENT IN SEWlNG-MACHENES FOR BOOTS AND SHOES.

Specification forming` part of Letters Patent No. 129.059, dated July16, 1872.

Specitication describing a new and useful Improvement in Machines forSewing Boots and Shoes, invented by NATHAN M. ROSINSKY, of the city,county, and State of New York.

This invention relates to improvements in machines for sewing the uppersof boots and shoes to the soles; and it consists in certain arrangementsof a loop-holder with the needle or awl and apparatus for operating it;also, in a novel construction oi'i'eed apparatus.

Figure lis partly a side elevation and partly a sectional elevation ofmy improved machine. Fig. 2 is a section ot Fig. 3 on the line .r a.Fig'. 3 is a horizontal section on theline y yof Fig. 1. Fig. 4 is asection of Fig. 3 on the line z z. Fig. 5 is a section of Fig'. 3 on theline w fw. Fig. 6 is a section of Fig. 4 on the line v c. Fig. 7 is atop view of the needle or awl and the stock to which it is attached.Fig. 8 is a side elevation ol Fig. 7. Fig. 9is a top View of theloop-holder and its stock. Fig. l() is a side elevation of Fig. 9. Fig.11 represents the positions ot' the needle, loop-holder, and the loopsjust after .the shoe has been moved along for a new stitch and when theneedle is lready to go down into the leather; and Fig. 12 shows theposition ofthe loopholder after it has drawn back above the loop readyto go down with the needle between it and the old loop, and hold thelatter away from the needlewhen it is drawing back with the next loop.

Similar letters of reference indicate corresponding parts.

The edge ofthe so1eA,`with the upper pasted or tacked upon it, is placedin the groove B of the block or plate G,in the manner shown in Fig. 2,so that the needle or awl D is presented to the under side ot' the iiapE, turned up by channeling the upper side ofl the sole, and passesthrough said iiap; also through the end ot' block C into a space, F,within the block, where it receives the thread U from a thread-carrier,H, which swings under the needle to the left and' draws the thread whichcomes down from the guide-roller I across the needle, above the hook, sothat the latter catches the thread when it moves back and pulls itthrough the leather to form the loop. The carrier H then rises andswings back to the right, ready for the next operation. The block G issuspended from the head J ofthe I arm K by a rod, L, and the shank M ofthe ,thread-carrier is mounted in a part oi'this head,

so as to turn on its axis, and at the saine time work vertically to someextent. 1t is forced downward by the cam N and upward by the spring D,and is turned on its axis by the camgroove QP, in which its crank pin Qworks. The needle is attached to a stock, R, arranged to slide up anddown in ways in tlie slanting support S, and connected by the rod T withcrank U, which is connected to wheel V by a pin, W', eccentric to theaxis of said wheel, constituting a crank-pin for the connectingrod X forworkin g the loop-holder, which will bepresently described. Y is thepresser, consisting of a bar attached to the end of a rod, Z, arrangedin the support S, at the right side of and parallel with theneedle-stock, to slide up and down, being moved down by the spring' aand up by the arm b attached to the loop-holder actuating slide G', andprojecting through a slot, d, in said bar Z, in suchv mannerl that,after the presser has moved down against the shoe, the loop-holderslide-bar will be allowed to move as much further as required withoutobstruction by said bar; but the slot is so that said bar b raises thepresser-bar Z just before it arrives at theupper end of its movementt'ar enough toll-aise the said presser oft' from the shoe for it tobe-moved-along by the teedillf'fiThe wheel V is suspended by its axle efrom the barf, and is actuated by the wheel g on the driving-shaft h,which also turns the cam "N, and another cam, i', for actuating thefeed-pusherj.

The machine, as thus rar described, also the shoe-holding apparatusshown at K, Fig. l, are substantially the same as described in thepatent granted to me May 16, 1871, No. 114,862, and are described merelyfor the better illustration ot' my present improvements,

which I will now proceed to describe: A is the loop-holder, which nowpropose to use instead of the discharger shown in'v the aforesaidpatent, which saidholder consists of a short steel wire arranged on theside ot' the needle, having the notch or hook a little distance from itand parallel with said needle, and with its lower end bent aroundagainst the needle, and grooved or provided with a l concave notch, inwhich the needles bear, so that they will not shitt relatively to eachother 2 manso or out of the plane in which they work. The stock or shankolil this holder is mounted in the lower end ot' an arm, B', projectingdownward from the lower end ot' a slotted plate or bent bar, U', so thatit can slide lengthwise in said arm, and between the lower end of saidholder; and on the arm B' is a coiled spring, 1)', acting on a collar,El, in such manner that the holder will be allowed to rest when it comesagainst the shoe and be pressed aga-inst it by the force ot the springonly, while the plate C' may be allowed to continue its downwardmovement to some extent after the holder comes against the shoe. Thisslotted bar C' works in ways in the support S above the needlestock It,and its connecting-rod T being contined in said ways by the plate E2 andbolt F'; and it is also held upon the slide-bar G' by the screw-pin ll'and a friction-plate, l', so as to be moved up and down by said barG',which is positively connected to the driving-wheel V by theconnecting-bar X and the wrist-pin W. This slide G' and the needle-stockare so connected to the drivin g-wheel thatthcir movements are alwaysopposed to each other; but it is necessary to have the loop-holder movedown with the needle when it enters the leather; hence bar C' is soconnected to the slidebar G' as to be allowed to shift on it, and a lug,K', is placed on the side otl the needle-stock B. to come against thearm B when the needle has arrived near the end ot` its movement inentering the leather, and it pushes said plate C' down a short distancein advance ot' its movement, with said bar G' to carry the loopholderdown at the right time. This lug then carries the said plate down tillarm B' comes against the stop-pin J in the lower end of the support S,where it remains with the loop-holder against the shoe, while the needledraws back, and until slide G' begins to go back, which begins just asthe needle has arrived at the upper end of its movement. Then slide G',with said plate C', and the loop-holder, go back until said loop-holderpasses above the bight ofthe loop of thread left by the needle. Then thelug K' strikes arm B' again and moves the loop-holder down alongside ofthe needle, and between it and said loop, to protect it from the hookwhen the needle draws back with the new loop. The old loop, behind or atthe right of the loop-holder, is then drawn up as the needle rises withthe new one, and the stitch is completed. After the needle has drawn aloop upward, and at the moment it is ready to come down again, the shoeis moved along to the left, so that the point ot' the needle is kept inthe old loop while forming the new one, and the old one is cast off ordrawn up taut over the point of the loop-holder, which, as beforest'ated, prevents it from being engaged by the hook when coming backwith the new loop. In Fig. l1, c' represents the sole; L', the loopafter the shoe has been fed along for a new stitch, and the needle isrepresented in the uppermost position, just ready to begin. its downmovement, and the loop-holder ready to begin its up movement for drawingabove the old loop to come down again behind the needle and said oldloop. Fig. 12 shows the needle a little further down and the loop-holderup above the old loop, ready to be brought down by lug K' in the bightof the loop between it and the needle. The support S t'or the needle andthe loop-holder is designed to have the same inclination as that ot the.bottom ot' the channel formed in the sole. so that the needle will runparallel with said bottom in entering the leather, the sole being heldin a horizontal plane, or nearl y so.

The feeding devlce j consists ol' a bluntpointed, crooked pushing-pawl,as shown in the drawing, and it is fastened in the lower end ot' avertical rod, e', suspended from a horizontal arm, f1, mounted on thevertical cranked rod g', which is actuated by the cam-groove h in a cam,i', in the shaft L. i The horizontal armj" is bolted to the lower endofthe cranked rod y' through a slot, j', and the bolt is provided with atlmlnbaiut, by which the said arm can be quickly fastened and unfastenedto allow ot' shitting the feed-pawl back from the shoe when it isiinished, to facilitate the removal ot' it and the application ot' .anew one, and then to shift it up again to the working position; also toshift the throw ot' the pawl to make long or short stitches. Thecam-groove is suitably shaped to impart the necessary oscillatorymovements to the pawl, and it is arranged in the cam in such relation tothe devices for working the needle and loop-holder as to cause the shoeto feed when the said needle and loop-holder are drawn back from theshoe. The feed-pawl is required to rise land fall to some extent toalter the pressure ot the point on the leather 5 theret'ore the verticalrod e' is arranged to rise and fall in the arm f1, a screw-nut, f2,being used to raise it, and a spring, l', is arranged to keep it down.Said rod c' is square in the part passing through arm f1 to preventbeing turned. The presser y is also a crooked, blunt-pointed instrument,and it is arranged to bear against the shoe in the channel as near tothe needle as it can without interference with it, and the feed-pawlalso works in the channel immediately behind the presser.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The teeding-pawlj, rode', adjustable slotted armf, and oscillatin g cranked rod g', combined as and for the purposes setforth.

2. The combination, with the slide G', ot' the plate C', the loop-holderA', spring D', collar El, and the lixed stop-pin J', all constructeda-nd operating substantially as specilied.

` NATHAN M. ROSINSKY.

Witnesses:

NV. A. GRAHAM, ALEX. F. ROBERTS.

